EP3949852A1 - Vorrichtung zur messung biologischer daten, verfahren zur messung biologischer daten und programm - Google Patents

Vorrichtung zur messung biologischer daten, verfahren zur messung biologischer daten und programm Download PDF

Info

Publication number
EP3949852A1
EP3949852A1 EP20783519.0A EP20783519A EP3949852A1 EP 3949852 A1 EP3949852 A1 EP 3949852A1 EP 20783519 A EP20783519 A EP 20783519A EP 3949852 A1 EP3949852 A1 EP 3949852A1
Authority
EP
European Patent Office
Prior art keywords
measurement
electrode
user
electrode part
inclination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20783519.0A
Other languages
English (en)
French (fr)
Other versions
EP3949852A4 (de
Inventor
Masayoshi Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanita Corp
Original Assignee
Tanita Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tanita Corp filed Critical Tanita Corp
Publication of EP3949852A1 publication Critical patent/EP3949852A1/de
Publication of EP3949852A4 publication Critical patent/EP3949852A4/de
Pending legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1116—Determining posture transitions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/26—Bioelectric electrodes therefor maintaining contact between the body and the electrodes by the action of the subjects, e.g. by placing the body on the electrodes or by grasping the electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4869—Determining body composition
    • A61B5/4872—Body fat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6829—Foot or ankle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0406—Constructional details of apparatus specially shaped apparatus housings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0462—Apparatus with built-in sensors
    • A61B2560/0468—Built-in electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches

Definitions

  • the present invention relates to a biological data measurement apparatus, a biological data measurement method, and a program for measuring a biological data of a user.
  • JP5493198B discloses a body composition analyzer as a biological data measurement apparatus of a type in which a user grasps a grip electrode by a hand.
  • a body composition analyzer of this type when the user grasps the grip electrode by the hand, an electrical current is applied from the hand to measure the biological data, such as an impedance, etc., and thereby, body-composition-related values, including a body fat percentage for example, of the user are obtained.
  • the body composition analyzer disclosed in JP5493198B is configured to determine whether or not the grip electrode is grasped suitably by the user and to measure the biological data of the user only when it is determined that the grip electrode is grasped suitably.
  • the biological data measured by applying the electrical current from the hand is changed in accordance with changes in a muscle contraction rate, a body water content, or the like.
  • the muscle contraction rate, the body water content, or the like is caused to be changed unconsciously depending on a posture of the user. Therefore, with the above-described body composition analyzer, there is a problem in that, even in a case in which the user is grasping the grip electrode suitably, it is not possible to obtain the body-composition-related values of the user accurately depending on the posture at the time of the measurement.
  • An object of the present invention is to provide a biological data measurement apparatus capable of obtaining a body-composition-related value of a user accurately regardless of a posture of the user when the biological data is measured.
  • the biological data measurement apparatus includes: an electrode part provided with an energization electrode and a measurement electrode, the electrode part being fixable to an upper limb of a user, and the energization electrode and the measurement electrode being arranged so as to be separated from each other; biological-information measurement means configured to measure biological information of the user by using the electrode part; inclination detection means configured to detect an inclination of the electrode part; and correction means configured to correct a measurement result obtained by the biological-information measurement means in accordance with the inclination of the electrode part detected by the inclination detection means.
  • the biological information measured by applying the electrical current from the hand can be corrected in accordance with a posture of the user, it is possible to obtain a body-composition-related value of the user more accurately regardless of the posture of the user.
  • FIG. 1 is a diagram showing an external appearance of a body composition analyzer 10 according to this embodiment.
  • the body composition analyzer 10 is provided with hand-side measurement portions (hand grips) 1, 2 and foot-side measurement portions 3, 4 that measure a bioelectrical impedance of a user, a display portion 5, and an operation portion 6.
  • the body composition analyzer 10 is further provided with: a hand-side unit 11 provided with the display portion 5 and the operation portion 6; a foot-side unit 12 provided with the foot-side measurement portions 3, 4; a supporting column 13 that is fixed to the foot-side unit 12 to support the hand-side unit 11; and the holder portions 14, 15 that respectively hold the hand grips 1, 2 in a detachable manner.
  • the hand grips (the electrode parts) 1, 2 are each configured so as to measure the bioelectrical impedance of the user, in a state in which it is fixed to an upper limb of the user, specifically in a state in which it is grasped by the hand of the user, by applying the electrical current to the hand and by detecting the voltage.
  • the hand grip 1 is provided with an electrical-current electrode 1a that applies the electrical current to the right hand of the user and a voltage electrode 1b that detects the voltage caused in the right hand by the electrical current applied to the right hand of the user from the electrical-current electrode 1a.
  • the hand grip 2 is provided with an electrical-current electrode 2a that applies the electrical current to the left hand of the user and a voltage electrode 2b that detects the voltage caused in the left hand by the electrical current applied to the left hand of the user from the electrical-current electrode 2a.
  • the hand grips 1, 2 in this embodiment are connected to the hand-side unit 11 via a cable capable of transmitting measurement data. Details of the hand grips 1, 2 will be described later with reference to FIGs. 2 , 3 , and so forth.
  • the foot-side measurement portions 3, 4 are each configured so as to measure the bioelectrical impedance of the user by applying the electrical current to the foot and by detecting the voltage.
  • the foot-side measurement portion 3 is provided with an electrical-current electrode 3a that applies the electrical current to the right foot of the user and a voltage electrode 3b that detects the voltage caused in the right foot by the electrical current applied to the right foot of the user from the electrical-current electrode 3a.
  • the foot-side measurement portion 4 is provided with an electrical-current electrode 4a that applies the electrical current to the left foot of the user and a voltage electrode 4b that detects the voltage caused in the left foot by the electrical current applied to the left foot of the user from the electrical-current electrode 4a.
  • the foot-side unit 12 provided with the foot-side measurement portions 3, 4 may also be configured so as to have a function of a scale.
  • the body composition analyzer 10 in this embodiment is configured such that the hand-side unit 11 to which the hand grips 1, 2 are connected and the foot-side unit 12 provided with the foot-side measurement portions 3, 4 are integrally formed via the supporting column 13 and so as to be capable of measuring the bioelectrical impedances of a whole body and the respective parts of the user by using eight electrodes that are arranged separately from each other so as to be capable of being respectively brought into contact with both hands and both feet.
  • the biological data measurement apparatus according to this embodiment is not necessarily applied to an eight-electrode type body composition analyzer having the eight electrodes.
  • the biological data measurement apparatus may also be applied to a four-electrode type body composition analyzer that measures the bioelectrical impedance of the user by using a total of four electrodes provided on the hand grips 1, 2, without requiring the foot-side measurement portions 3, 4.
  • the display portion 5 functions as informative means that informs the user of measurement results, etc.
  • a liquid crystal display panel such as an LCD (Liquid Crystal Display), etc. is employed for example.
  • the operation portion 6 functions as an input interface for receiving input operation by the user.
  • the operation portion 6 in this embodiment includes a plurality of operation buttons including input buttons for inputting basic biological information, such as the stature, sex, age, and so forth, a power button for turning ON/OFF the power of the body composition analyzer 10, and so forth.
  • the operation portion 6 may be omitted, and the function of the operation portion 6 may be achieved by the display portion 5.
  • the hand grip 1 and the hand grip 2 are formed left-right symmetry in the body composition analyzer 10, and the hand grip 1 and the hand grip 2 have the same basic configuration and function except for a difference in that the measurement object is the right hand or the left hand.
  • the details of the hand grip 1 whose measurement object is the right hand of the user will be described as a representative.
  • FIGs. 2A to 2C and FIGs. 3A and 3B are diagrams for explaining the details of the hand grip 1.
  • FIGs. 2A to 2C are diagrams for explaining an external appearance of the hand grip 1.
  • FIGs. 3A and 3B are diagrams for explaining a usage state of the hand grip 1.
  • FIG. 3A shows a suitable usage state of the hand grip 1
  • FIG. 3B shows an example of an inappropriate usage state of the hand grip 1.
  • the hand grip 1 is used in a state in which it is grasped by the right hand of the user after being removed from the holder portion 14.
  • the hand grip 1 when the hand grip 1 is grasped by the user, it is preferable that the hand grip 1 be grasped firmly so as not to be wobbled at least during the measurement by causing the finger tips side of the hand to come into contact with the electrical-current electrode 1a and the palm to come into contact with the voltage electrode 1b. If the hand grip 1 is grasped too loosely as shown in FIG. 3B , a measurement accuracy is substantially deteriorated due to the insufficient contact between the hand of the user and the respective electrodes, wobbling of the hand grip 1 during the measurement, or the like, and so, it is not preferred.
  • the hand grip 1 is preferably used in a state in which the hand grip 1 is held by the right hand of the user such that its longitudinal direction is in the horizontal direction with respect to the ground surface.
  • FIG. 2A shows an upper surface of the hand grip 1
  • FIG. 2B shows a side surface of the hand grip 1
  • FIG. 2C shows a lower surface of the hand grip 1.
  • the electrical-current electrode 1a serving as an energization electrode and the voltage electrode 1b serving as a measurement electrode are arranged so as to be separated from each other.
  • the electrical-current electrode 1a is provided on the lower surface of the hand grip 1
  • the voltage electrode 1b is provided on the upper surface of the hand grip 1.
  • the hand grip 1 in a state in which being grasped by the right hand of the user as shown in FIG. 3A , the hand grip 1 can apply the electrical current to the finger tips side of the right hand of the user and suitably detect the voltage from the palm of the right hand of the user. Then, the body composition analyzer 10 can measure (calculate) the bioelectrical impedance of the user on the basis of the electrical current applied by at least a pair of hand grips 1 and 2 and the respective detected values of the voltage, and further, the body composition analyzer 10 can calculate a body-composition-related value of the user such as a body fat percentage, a visceral fat level, and so forth on the basis of the measured value of the bioelectrical impedance that has been measured.
  • the value of the bioelectrical impedance measured is also referred to as the measured value.
  • the bioelectrical impedance of the user that is measured on the basis of the respective values for the electrical current applied to the user and the voltage detected by using the hand grip 1 is changed depending on the state of the user at the time of the measurement. For example, when the body water content of the user is changed (moved) by the posture of the user, the bioelectrical impedance is also changed in accordance with the amount of change (the amount of movement) of the body water content. In addition, also when the muscle of the user is contracted in accordance with the posture and the cross-sectional area of the muscle is changed, the bioelectrical impedance is changed. In addition, the bioelectrical impedance is also changed in accordance with a change in the shape of the joint of the user, a change in a blood flow, and so forth.
  • the biological data measurement apparatus of this embodiment has been invented in light of such a problem, and the biological data measurement apparatus is configured so as to be capable of calculating the body-composition-related value of the user as accurately as possible regardless of the posture of the user at the time of the measurement.
  • the body composition analyzer 10 is configured so as to detect an inclination (angle) of the hand grip 1 as a parameter indicative of the posture of the user.
  • the hand grip 1 of this embodiment is provided with a three-axis acceleration sensor 7 serving as means for detecting the inclination and detects an angle of each of angles (the X axis, the Y axis, and the Z axis) as the parameter indicative of the posture of the user.
  • the body composition analyzer 10 then corrects the measured value of the bioelectrical impedance measured by the hand grip 1 in accordance with the detected value (the X-axis angle, the Y-axis angle, and the Z-axis angle) obtained by the acceleration sensor 7 provided in the hand grip 1.
  • the body composition analyzer 10 can correct the measured value of the bioelectrical impedance in accordance with the posture, and thereby, the body composition analyzer 10 improve the accuracy of the body-composition-related value calculated on the basis of the measured value of the bioelectrical impedance.
  • the body composition analyzer 10 in this embodiment can calculate the body-composition-related value of the user accurately regardless of the posture of the user at the time of the measurement. The details of the functions of the body composition analyzer 10 in this embodiment will be described below.
  • FIG. 4 is a block diagram showing a main functional configuration of the body composition analyzer 10 in this embodiment.
  • the hand grip 1 and the hand grip 2 have the same basic configuration and function except for a difference in that it is adapted to the right hand or to the left hand, FIG. 4 only shows the hand grip 1 as a representative.
  • the foot-side measurement portions 3, 4 for the foot-side unit 12 are not essential configurations as described above, the description thereof is omitted.
  • the body composition analyzer 10 is mainly provided with: in addition to the display portion 5, the operation portion 6, the hand grip 1, the electrical-current electrode 1a, the voltage electrode 1b, and the acceleration sensor 7, that are described above, a storage part 8; the bioelectrical impedance measurement part 9; and a control part 20 including a biological information calculation part 27 and a biological information the correction part 22.
  • the acceleration sensor 7 serving as inclination detection means is provided in the hand grip 1 and detects the angles (the X-axis angle, the Y-axis angle, and the Z-axis angle) of the hand grip 1. The details of the acceleration sensor 7 will be described with reference to FIGs. 5A to 5C .
  • FIGs. 5A to 5C are diagrams for explaining the acceleration sensor 7 provided in the hand grip 1.
  • FIGs. 5A and 5B show the axial directions detected by the acceleration sensor 7, and
  • FIG. 5C shows an arrangement example of the acceleration sensor 7 in the hand grip 1.
  • the acceleration sensor 7 in this embodiment detects a predetermined one direction that is in parallel with the plane direction of the acceleration sensor 7 as the X axis, and similarly, detects the direction that is in parallel with the plane direction and that is perpendicular to the X axis as the Y axis.
  • the acceleration sensor 7 detects the vertical direction relative to the plane direction as the Z axis.
  • the acceleration sensor 7 is arranged in the hand grip 1, which is in a state in which the longitudinal direction thereof is inclined so as to be in parallel with the ground surface, such that the longitudinal direction of the hand grip 1 coincides with the Z axis direction, the lateral direction that is perpendicular to the longitudinal direction of the upper surface of the hand grip 1 (see FIG. 2B ) coincides with the Y axis direction, and the X axis direction coincides with the vertical direction relative to the ground surface.
  • the position of the acceleration sensor 7 in the longitudinal direction of the hand grip 1 may be set appropriately by taking a detection sensitivity into consideration.
  • the acceleration sensor 7 in the hand grip 1, it is possible to detect the angles (the X-axis angle, the Y-axis angle, and the Z-axis angle) of the hand grip 1 that is grasped by the user.
  • the acceleration sensor 7 is also arranged in the hand grip 2 in a similar manner. The description will be continued below by referring back to FIG. 4 .
  • the bioelectrical impedance measurement part 9 is configured of an electrical-current application part 9a that is electrically connected to the electrical-current electrode 1a and a voltage measurement part 9b that is electrically connected to the voltage electrode 1b.
  • the electrical-current application part 9a applies the AC electrical current to the finger tips of the hand of the user via the electrical-current electrode 1a, and the voltage measurement part 9b detects the voltage in the palm of the user via the voltage electrode 1b.
  • the biological information calculation part 27 functions as biological-information measurement means for measuring the biological information of the user by using the hand grips 1 and 2.
  • the biological information in this description includes the bioelectrical impedance or the body composition. The description will be continued below by assuming that the biological information in this embodiment is the bioelectrical impedance.
  • the biological information calculation part 27 of this embodiment calculates, in the bioelectrical impedance measurement part 9, the bioelectrical impedance of the user on the basis of the respective values for the supplied electrical current and the detected voltage.
  • a so called BIA Bioelectrical Impedance Analysis
  • the biological information correction part 22 (hereinafter, simply referred to as the correction part 22) corrects the measured value of the bioelectrical impedance of the user calculated by the biological information calculation part 27 on the basis of the angles (the X-axis angle, the Y-axis angle, and the Z-axis angle) of the hand grip 1 detected by the acceleration sensor 7. The details of the correction will be described below with reference to FIG. 6 .
  • a control program for controlling an operation of the body composition analyzer 10 is stored in the storage part 8.
  • the storage part 8 functions as a computer readable storage medium in which the program that realizes the functions of the biological data measurement apparatus of this embodiment is recorded.
  • the storage part 8 is formed of a nonvolatile memory (ROM; Read Only Memory), a volatile memory (RAM; Random Access Memory), and so forth.
  • the storage part 8 also stores a map data, etc. that is referred to during the correction of basic biological information input to the operation portion 6, the corrected bioelectrical impedance information, and the measured value of the bioelectrical impedance according to the X-axis angle, the Y-axis angle, or the Z-axis angle.
  • the control part 20 is configured of a central processing unit (CPU), an input-output interface connected to the above-described respective functional components, and a bus for mutually connecting these components.
  • the control part 20 controls respective parts of the body composition analyzer 10 via the input-output interface by reading out the control program stored in the storage part 8 and causing the central processing unit to execute the control program.
  • control part 20 controls each of the hand grips 1 and 2, the display portion 5, the operation portion 6, the bioelectrical impedance measurement part 9, the storage part 8, the biological information calculation part 27, and the correction part 22 and executes various arithmetic processing required for controlling these components.
  • control part 20 has functions as: body composition calculation means that calculates the body composition of the user (the body fat percentage in this embodiment) on the basis of the measured value of the bioelectrical impedance; abnormal posture determination means that determines whether or not the inclinations of the hand grips 1, 2 that have detected fall within a predetermined inclination range; and abnormal-posture-degree calculation means that calculates a difference between the inclinations of the hand grips 1, 2 that are expected when the recommended posture of the user is maintained and the inclinations of the hand grips 1, 2 that have been detected.
  • a body composition measurement processing for measuring the body composition of the user executed by the body composition analyzer 10
  • a body fat percentage is calculated as a kind of the body composition of the user
  • the body composition measurement processing described below is realized based on the control program stored in the storage part 8.
  • the body composition analyzer 10 is the posture recommended for suitably measuring the bioelectrical impedance of the user by the body composition analyzer 10 and is the posture serving as a reference for determining whether or not the correction, which will be described below, is required for the measured value of the bioelectrical impedance.
  • both arms are naturally hanging down from the shoulders in the gravitational direction and are not opened unnaturally in front-back/left-right directions, and in addition, the wrists are not bent.
  • the body water content in the upper body do not change abnormally, and the contraction rate, etc. of the muscle of the joints of the wrists or the arms do not change unnaturally, and therefore, it is possible to suitably measure the true bioelectrical impedance of the user.
  • the X-axis angle, the Y-axis angle, and the Z-axis angle to be detected by the acceleration sensor 7 when the user is in such a normal posture are estimated in advance from experimentally obtained measured values, etc., and the estimated values are stored in advance in the storage part 8 as reference values for determination of the posture, which will be described below.
  • the reference values may be equally set regardless of the physique, an amount of the muscle, or the like of the user, or the reference values may be adjusted (increased/decreased) in accordance with the physique, etc. of the user estimated based on the basic biological information, etc., which has been input to the operation portion 6.
  • step S10 the control part 20 determines whether or not a certain period of time has elapsed without any movement of the user after the measurement of the bioelectrical impedance of the user was started by applying the electrical current to the hand of the user via the electrical-current application part 9a.
  • the certain period of time is a period of time required for suitably measuring the bioelectrical impedance and is, for example, ten seconds. During this period, the user tries not to move in a relaxed state as much as possible.
  • the control part 20 acquires the data (the X-axis angle, the Y-axis angle, and the Z-axis angle) related to the inclination of the hand grip 1 from the acceleration sensor 7.
  • the processing in step S10 functions as an inclination detection step for detecting the inclination of the hand grip 1 as the parameter indicative of the posture of the user.
  • the control part 20 re-executes the processing in step S10 from the beginning.
  • the control part 20 may be informed via the display portion 5 that he/she needs to adjust his/her posture to a more suitable posture.
  • the processing in step S11 is executed.
  • step S11 the biological information calculation part 27 calculates the bioelectrical impedance of the user by known methods on the basis of the basic biological information of the user and of the electrical current applied from the electrical-current electrodes 1a, 2a and the voltage detected by the voltage electrode 1b, 2b in step S10.
  • the processing in step S12 is executed.
  • step S12 the control part 20 determines whether or not the average value of the X-axis angle over the certain period of time required for measuring the bioelectrical impedance in step S10 falls within the predetermined inclination range.
  • the predetermined inclination range in the above description is set on the basis of the detected value of the X-axis angle (the reference value) that is expected when the user is in the normal posture. For example, in this embodiment, a range of ⁇ 5° of the reference value is set as the predetermined inclination range of the X-axis angle by considering a measurement error that can be allowed from the viewpoint of ensuring the accuracy of the measurement result of the body fat percentage.
  • the posture is determined as being the normal posture, and if the average value falls outside the range of ⁇ 5°, the posture is determined as being the abnormal posture.
  • FIGs. 8A and B are diagrams for explaining an example of the posture (the abnormal posture) with which it is determined that the X-axis angle does not fall within the predetermined inclination range in step S12.
  • FIG. 8A shows a diagram for explaining the example in which the posture of the user is determined as being the abnormal posture due to a degree of the curvature of the wrist.
  • the user in this example is unnaturally bending the wrist so as to roll the hand grip 1 inwards (towards the body) while grasping the hand grip 1.
  • the shape of the joint of the right the wrist is different from that in the normal posture, and the muscle contraction rate, etc. of the arm (especially, the forearm) is changed relative to the case in which the user is in the normal posture, and therefore, the bioelectrical impedance to be measured is changed.
  • the control part 20 can acquire a difference (the X-axis angle difference ⁇ 1) between the X-axis angle detected via the acceleration sensor 7 provided in the hand grip 1 and the reference value serving as the parameter indicative of the degree of the curvature of the wrist.
  • FIG. 8B shows a diagram for explaining the example in which the posture of the user is determined as being the abnormal posture due to a degree of opening of the arm.
  • the user in this example is unnaturally opening the arms outwardly (towards the side away from the body) while grasping the hand grip 1.
  • the body water content of the user is changed (moved) from the state in the normal posture, and therefore, the bioelectrical impedance to be measured is changed in accordance with the amount of change (the amount of movement) of the body water content.
  • the contraction rate of the muscle around the shoulder or the muscle of the chest is also changed relative to the case in which the user is in the normal posture, and therefore, these are also factors for the change in the bioelectrical impedance.
  • the control part 20 can acquire a difference (the X-axis angle difference ⁇ 2) between the X-axis angle detected via the acceleration sensor 7 provided in the hand grip 1 and the reference value as the parameter indicative of the degree of opening of the arm.
  • the control part 20 determines whether or not the difference (for example, the X-axis angle difference ⁇ 1 or ⁇ 2) between the average value of the X-axis angle thus detected and the reference value falls within a predetermined range, in other words, determines whether or not the average value of the X-axis angle falls within the predetermined inclination range, and when the average value of the X-axis angle falls within the predetermined inclination range, the control part 20 determines that the posture of the user is the normal posture and executes the processing in step S14. When it is determined that the average value of the X-axis angle does not fall within the predetermined inclination range, the control part 20 determines that the posture of the user is the abnormal posture and executes the processing in step S13.
  • the difference for example, the X-axis angle difference ⁇ 1 or ⁇ 2
  • the correction part 22 corrects the measured value of the bioelectrical impedance, which has been calculated in step S11, on the basis of the difference between the X-axis angle detected via the acceleration sensor 7 and the reference value. It is preferable that a correction level be adjusted in accordance with the difference (the X-axis angle difference ⁇ 1 or ⁇ 2) between the detected X-axis angle and the reference value. For example, the correction is performed such that the larger the X-axis angle difference ⁇ 2 is, the smaller the value of the bioelectrical impedance becomes.
  • the correction level of the bioelectrical impedance based on the X-axis angle differences ⁇ 1, ⁇ 2 is adjusted appropriately such that the bioelectrical impedance after correction takes a suitable value.
  • the map data in which the correction levels suitable for experimentally derived X-axis angle differences ⁇ 1, ⁇ 2 are set, is stored in advance, and the correction level is decided as the correction part 22 refers to the map data.
  • the correction level based on the X-axis angle differences ⁇ 1, ⁇ 2 may be equally set regardless of the physique, an amount of the muscle, or the like of the user or may be adjusted (increased/decreased) in accordance with the physique, etc. of the user estimated based on the basic biological information, etc. input to the operation portion 6.
  • the correction level based on the X-axis angle differences ⁇ 1, ⁇ 2 may be adjusted in accordance with a mode of the abnormal posture of the user. For example, in the posture of the user, the degree of opening of the arm has a greater effect on the change in the bioelectrical impedance to be measured than the degree of the curvature of the wrist. Therefore, for example, weighting may be performed such that, even if the absolute values of the X-axis angle differences ⁇ 1, ⁇ 2 are the same, the X-axis angle difference ⁇ 2 indicative of the degree of opening of the arm has a greater influence on the correction level than the X-axis angle difference ⁇ 1 indicative of the degree of the curvature of the wrist.
  • the hand grip 1 may be configured so as to be capable of discriminating the mode by not only using the acceleration sensor 7, but also, by combining, for example, the detected values from other sensors, such as a gyro sensor, a distance sensor, or the like, or alternatively, by using an image recognition, etc.
  • the correction level may be equally set in accordance with the absolute values of the X-axis angle differences ⁇ 1, ⁇ 2 without considering the mode of the abnormal posture.
  • the processing in step S14 is executed subsequently.
  • step S14 the control part 20 determines whether or not the average value of the Y-axis angle over the certain period of time required for measuring the bioelectrical impedance in step S10 falls within the predetermined inclination range.
  • the predetermined inclination range in this description is set on the basis of the detected value of the Y-axis angle (the reference value) that is expected when the user is in the normal posture.
  • FIG. 9 is a diagram for explaining an example of the posture (the abnormal posture) with which it is determined that a difference between the average value of the Y-axis angle and the reference value (the Y-axis angle difference) does not fall within a predetermined range in step S14.
  • FIG. 9 shows a diagram for explaining an example in which the posture is determined as being the abnormal posture due to the angle of the arm in the front-back direction.
  • the user in this example is excessively lifting the arm grasping the hand grip 1 towards the front.
  • the body water content, the contraction rate of the muscle around the shoulder, or the like of the user is changed relative to the case in which the user is in the normal posture, and therefore, the bioelectrical impedance to be measured is caused to be changed.
  • the same is applied to the case in which the arm is excessively lowered towards back.
  • the control part 20 can acquire, as the parameter indicative of a degree of the lifting of the arm towards the front, the difference between the Y-axis angle detected via the acceleration sensor 7 provided in the hand grip 1 and the reference value, in other words, the Y-axis angle difference .
  • the control part 20 determines whether or not the difference between the average value of the Y-axis angle detected as described above and the reference value falls within the predetermined range, in other words, whether or not the average value of the Y-axis angle falls within the predetermined inclination range, and when the average value of the Y-axis angle falls within the predetermined inclination range, the control part 20 determines that the posture of the user is the normal posture and executes the processing in step S16. When it is determined that the average value of the Y-axis angle does not fall within the predetermined inclination range, the control part 20 determines that the posture of the user is the abnormal posture and executes the processing in step S15.
  • step S15 the correction part 22 corrects the bioelectrical impedance, which has been calculated in step S11, on the basis of the difference between the Y-axis angle detected via the acceleration sensor 7 and the reference value (the Y-axis angle difference), or if required, the correction part 22 further corrects the bioelectrical impedance, which has been corrected in step S13.
  • the correction level be adjusted in accordance with the difference between the Y-axis angle detected and the reference value (the Y-axis angle difference).
  • step S16 the control part 20 determines whether or not the average value of the Z-axis angle over the certain period of time required for measuring the bioelectrical impedance in step S10 falls within the predetermined inclination range.
  • the predetermined inclination range in the above description is set on the basis of the detected value of the Z-axis angle (the reference value) that is expected when the user is in the normal posture.
  • FIG. 10 is a diagram for explaining an example of the posture (the abnormal posture) with which it is determined that a difference between the average value of the Z-axis angle and the reference value (the Z-axis angle difference) does not fall within a predetermined range in step S16.
  • FIG. 10 shows a diagram for explaining the example in which the posture of the user is determined as being the abnormal posture due to the degree of twisting of the arm.
  • the user in this example is twisting the arm grasping the hand grip 1 in the clockwise direction (the left hand is twisted in the anti-clockwise direction) excessively.
  • the contraction rate, blood flow, or the like of the muscle of the arm of the user is changed relative to the case in which the user is in the normal posture, and therefore, the bioelectrical impedance to be measured is changed.
  • the control part 20 can acquire the difference between the Z-axis angle detected via the acceleration sensor 7 provided in the hand grip 1 and the reference value (the Z-axis angle difference) as a parameter indicative of the degree of twisting of the arm.
  • the control part 20 determines whether or not the difference between the average value of the Z-axis angle detected as described above and the reference value falls within the predetermined range, in other words, whether or not the average value of the Z-axis angle falls within the predetermined inclination range, and when the average value of the Z-axis angle difference falls within the predetermined inclination range, the control part 20 determines that the posture of the user is the normal posture and executes the processing in step S18. When it is determined that the average value of the Z-axis angle does not fall within the predetermined inclination range, the control part 20 determines that the posture of the user is the abnormal posture and executes the processing in step S17.
  • step S17 the correction part 22 corrects the bioelectrical impedance, which has been calculated in step S11, on the basis of a difference between the Z-axis angle detected via the acceleration sensor 7 and the reference value (Z-angle difference), or if required, the correction part 22 further corrects the measured value of the bioelectrical impedance that has been corrected in step S13 and step S15.
  • the correction level be adjusted in accordance with the value of the difference between the Z-axis angle detected and the reference value (the Z-axis angle difference).
  • step S18 the control part 20 calculates the body fat percentage of the user by known methods on the basis of the measured value of the bioelectrical impedance corrected by the above-described flow.
  • the processing in step S19 is executed subsequently.
  • step S19 the control part 20 informs the user of the measurement result for the body fat percentage of the user obtained in step S19 by displaying it on the display portion 5.
  • the body composition analyzer 10 can calculate the body fat percentage of the user more accurately compared with the related art regardless of the posture of the user.
  • the control part 20 terminates the processing for measuring the body composition of the user.
  • the correction part 22 need not necessarily correct the bioelectrical impedance on the basis of all of the X-axis angle differences ⁇ 1, ⁇ 2, the Y-axis angle difference, and the Z-axis angle difference, and the correction may be performed on the basis of at least one difference, for example, the X-axis angle difference ⁇ 1, ⁇ 2.
  • the weighting may be performed so as to increase/decrease the correction level by considering a degree of influence of the angle difference for the respective axes on the bioelectrical impedance.
  • the correction part 22 performs the correction on the basis of only the X-axis angle differences ⁇ 1, ⁇ 2, for example, it is not necessarily to employ the three-axis acceleration sensor as the acceleration sensor 7, and a uni-axial acceleration sensor adapted to the X axis may be employed.
  • the object to be corrected by the correction part 22 on the basis of the angle differences for the respective axes need not be the bioelectrical impedance.
  • the body composition analyzer 10 may correct the body fat percentage as the body-composition-related value on the basis of at least one of the X-axis angle differences ⁇ 1, ⁇ 2, the Y-axis angle difference, and the Z-axis angle difference.
  • the correction part 22 may correct the body fat percentage as the body-composition-related value on the basis of the angles of the hand grip 1 (the X-axis angle, the Y-axis angle, and the Z-axis angle) detected by the acceleration sensor 7.
  • steps S13, S15, and S17 are deleted, and the processing in step S18 is changed to a processing in which the body fat percentage of the user is calculated on the basis of the bioelectrical impedance, which is not calculated in step S11. Then, a processing of correcting the body fat percentage on the basis of at least one of the X-axis angle differences ⁇ 1, ⁇ 2, the Y-axis angle difference, and the Z-axis angle difference (an inclination angle) detected in steps S12, S14, and S16 may be added between step S18 and step S19.
  • the biological information calculation part 27 functioning as the above-described biological-information measurement means is a function part including the body composition calculation means for calculating the body composition of the user (the body fat percentage in this embodiment) and is configured so as to measure the body composition of the user by using the hand grips 1 and 2.
  • the biological data measurement apparatus (the body composition analyzer 10) is provided with: the electrode part (the hand grip 1, 2) provided with the energization electrode (the electrical-current electrode 1a, 1b) and the measurement electrode (the voltage electrode 1b, 2b), the electrode part (the hand grip 1, 2) being fixable to the upper limb of the user, and the energization electrode (the electrical-current electrode 1a, 1b) and the measurement electrode (the voltage electrode 1b, 2b) being arranged so as to be separated from each other; the biological-information measurement means (the biological information calculation part 27) configured to measure the biological information of the user by using the hand grip 1, 2; the inclination detection means (the acceleration sensor 7) configured to detect the inclination of the hand grip 1, 2; and the correction means (the biological information correction part 22) configured to correct the measurement result obtained by the biological information calculation part 27 in accordance with the inclination of the hand grip 1, 2 detected by the inclination detection means.
  • the biological-information measurement means (the biological information calculation part 27) configured to measure the
  • the body composition analyzer 10 can correct the biological information in accordance with the posture, and therefore, it is possible to accurately measure the biological information of the user regardless of the posture of the user.
  • the measurement result obtained by the biological information calculation part 27 includes the bioelectrical impedance of the user or the body composition of the user.
  • the biological data measurement apparatus (the body composition analyzer 10) is further provided with the body composition calculation means (the control part 20) configured to calculate, when the measurement result is the bioelectrical impedance of the user, the body composition of the user on the basis of the bioelectrical impedance corrected by the correction means.
  • the correction part 22 can correct the bioelectrical impedance in accordance with the posture.
  • the body composition analyzer 10 can improve the accuracy of the body-composition-related value that is calculated on the basis of the bioelectrical impedance.
  • the correction level is changed in accordance with the different type of the body composition, for example, the body fat percentage or the amount of the muscle.
  • the object of the correction can be narrowed to the bioelectrical impedance only, and therefore, a computational load is reduced compared with a case in which each of the specific types is individually corrected in accordance with the specific type of the body composition.
  • the inclination detection means is the acceleration sensor 7 provided in the hand grip 1, 2.
  • the body composition analyzer 10 can detect the angle of the hand grip 1 as the parameter corresponding to the posture of the user at the time of the measurement.
  • the body composition analyzer 10 is further provided with the abnormal posture determination means (the control part 20) configured to determine whether or not the inclination of the hand grip 1, 2 detected falls within the predetermined inclination range.
  • the biological information correction part 22 corrects the measured value of the bioelectrical impedance. By doing so, it is possible to more suitably correct the bioelectrical impedance thus measured by considering a slight movement (a shaking), a measurement error, and so forth of the posture of the user at the time of the measurement that can be allowed from the viewpoint of ensuring the accuracy of the measurement result.
  • the predetermined inclination range is set on the basis of the inclination of the hand grip 1, 2 at the time when the user, to which the hand grips 1, 2 are fixed, are holding the recommended posture for measuring the bioelectrical impedance.
  • a suitable comparison target for determining the abnormal posture is set, and so, the control part 20 can suitably detect whether or not the posture of the user is abnormal.
  • the body composition analyzer 10 when the user holding the hand grip 1, 2 is measuring the bioelectrical impedance by using the abnormal-posture-degree calculation means (the control part 20), the difference between the inclination of the hand grip 1, 2 at the time when the recommended posture is maintained and the detected inclination of the hand grip 1, 2 is calculated, and the correction is performed such that the larger the difference thus calculated is, the smaller the bioelectrical impedance further becomes.
  • the correction level can be adjusted in accordance with the posture of the user (especially, the shift from the recommended posture), and therefore, it is possible to more suitably correct the bioelectrical impedance thus measured and to further improve the accuracy of the body-composition-related value calculated on the basis of the bioelectrical impedance.
  • body fat analyzers body fat analyzers
  • four-electrode type body composition analyzers that are capable of measuring a skinfold thickness of the user by pressing a single electrode part including a pair of voltage electrodes and a pair of electrical-current electrodes against the abdomen, etc.
  • these body composition analyzers for different measurement points are configured by using similar electrodes, they are provided as separate products because the number and arrangements of the required electrodes are different.
  • the body composition analyzer 10 in this embodiment has been invented in light of the circumstances described above, and is characterized in that the functions of two types of body composition analyzers with different modes are achieved by a single body composition analyzer. More specifically, a hand grip 21 provided in the body composition analyzer 10 in this embodiment is characterized in that it is configured so as to be capable of being switched between "a normal mode” and "a sebum caliper mode" in the four-electrode or eight-electrode type body composition analyzer (the body fat analyzer).
  • the hand grip 21 functions as a dual-electrodes body composition analyzer that applies the electrical current to one of the arms (the right arm in this embodiment), and in the sebum caliper mode, the hand grip 21 functions as the four-electrode type body composition analyzer that locally measures the body composition of the user.
  • the details of the body composition analyzer 10 in this embodiment will be described by using FIGs. 11 to 13 . Descriptions of the functions and components that are similar to those in the first embodiment will be omitted.
  • FIGs. 11A to 11D are diagrams for explaining the hand grip 21 of this embodiment.
  • a function of realizing "the sebum caliper mode” and a function of switching between "the sebum caliper mode” and “the normal mode” are added to the hand grip 1 described in the first embodiment.
  • These functions can be added not only to the hand grip 1, but also to both of the hand grips 1 and 2. It is also possible to add these functions to only the hand grip 2.
  • the hand grip 21 corresponding to the hand grip 1 will be described mainly on differences with the hand grip 1.
  • FIGs. 11A and 11B are diagrams for explaining the configuration of the hand grip 21 at the time of the normal mode.
  • FIGs. 11A and 11B corresponds to FIGs. 2A and 2B , respectively.
  • the hand grip 21 at the time of the normal mode is configured as the bioelectrical impedance measurement apparatus for the right arm that is provided with two electrodes, i.e. the electrical-current electrode 1a and the voltage electrode 1b, similarly to the hand grip 1 in the first embodiment.
  • the hand grip 21 of this embodiment is configured of at least four electrodes A to D arranged adjacent with each other, and furthermore, the voltage electrode 1b serving as the measurement electrode is configured by bringing these four electrodes A to D into mutual continuity.
  • FIGs. 11C and 11D are diagrams for explaining the configuration of the hand grip 21 at the time of the sebum caliper mode.
  • a portion corresponding to the voltage electrode 1b shown in FIGs. 11A and 11B is divided into four electrodes, i.e., an electrical-current electrode 21a+, an electrical-current electrode 21a-, a voltage electrode 21b+, and a voltage electrode 21b-.
  • the four electrodes functioning at the time of the sebum caliper mode are realized by bringing the four electrodes A to D, which configure a single electrode (the voltage electrode 1b) by being brought into the mutual continuity at the time of the normal mode, into mutual non-continuity. Furthermore, a portion corresponding to the electrical-current electrode 1a shown in FIGs. 11A and 11B is caused to lose its function as the electrode by bringing it into non-continuity with the electrical-current application part 9a, for example.
  • the hand grip 21 at the time of the sebum caliper mode can realize the function as the bioelectrical impedance measurement apparatus (a skinfold caliper) for local measurement that is provided with the four electrodes, i.e. the electrical-current electrode 21a+, the electrical-current electrode 21a-, the voltage electrode 21b+, and the voltage electrode 21b-.
  • a method of bringing the above-described adjacent four electrodes A to D into continuity/non-continuity is not particularly limited, and in order to realize this configuration, for example, a switching circuit (not shown) for switching ON/OFF according to a control signal from a mode switching part 26, which will be described below, may be provided between the adjacent electrodes among the four electrodes A to D.
  • points for switching the continuity/non-continuity of the four electrodes A to D may not necessarily be at between the electrodes A to D provided in the hand grip 21 as shown in the figure, and they may be at any points on the line between the respective electrodes of the electrodes A to D and the control part 20 for achieving the continuity.
  • FIG. 12 is a block diagram showing a main functional configuration of the body composition analyzer 10 in this embodiment. This figure also shows the foot-side measurement portions 3, 4, and the hand grip 2 at the time of the normal mode, which are omitted in the first embodiment.
  • the body composition analyzer 10 in this embodiment is mainly provided with, as its functional configuration, in addition to the hand grip 2, the foot-side measurement portion 3, the foot-side measurement portion 4, the display portion 5, the operation portion 6, the acceleration sensor 7, the storage part 8, the bioelectrical impedance measurement part (the hand-side bioelectrical impedance measurement part) 9, and the control part 20: the hand grip 21; a foot-side bioelectrical impedance measurement part 23;, a hand-side mode switch 24; a foot-side mode switch 25; and a mode switching part 26.
  • the hand-side bioelectrical impedance measurement part 9 is configured of the electrical-current application part 9a having two output lines (I+, I-) for applying the electrical current and the voltage measurement part 9b having two input lines (V+, V-) for detecting the voltage. Respective connections (electrical connections) of the output lines (I+, I-) of the electrical-current application part 9a and the input lines (V+, V-) of the voltage measurement part 9b with the respective electrodes provided in the hand grip 21 and the hand grip 2 are switched in accordance with the respective measurement modes (the normal mode or the sebum caliper mode) via the hand-side mode switch 24.
  • the respective measurement modes the normal mode or the sebum caliper mode
  • the foot-side bioelectrical impedance measurement part 23 is configured of an electrical-current application part 23a having the two output lines (I+, I-) for applying the electrical current and a voltage measurement part 23b having the two input lines (V+, V-) for detecting the voltage. Respective connections of the output lines (I+, I-) of the electrical-current application part 23a and the input lines (V+, V-) of the voltage measurement part 23b with the respective electrodes provided in the foot-side measurement portion 3 and the foot-side measurement portion 4 are switched in accordance with the respective measurement modes (the normal mode or the sebum caliper mode) via the foot-side mode switch 25.
  • the respective measurement modes the normal mode or the sebum caliper mode
  • the mode switching part 26 switches the measurement mode of the body composition analyzer 10 on the basis of the angles of the hand grip 21 (at least one of the X-axis angle, the Y-axis angle, and the Z-axis angle) detected by the acceleration sensor 7. More specifically, the mode switching part 26 switches the measurement mode of the body composition analyzer 10 by controlling the hand-side mode switch 24 and the foot-side mode switch 25 on the basis of the angle of the hand grip 21 detected by the acceleration sensor 7.
  • the mode switching part 26 when the mode switching part 26 detected that the user is maintaining a state in which the hand grip 21 is held horizontally with respect to the ground surface for the certain period of time on the basis of the detected angle of the hand grip 21, the mode switching part 26 controls the hand-side mode switch 24 and the foot-side mode switch 25 such that the measurement mode of the body composition analyzer 10 is switched to "the normal mode".
  • the mode switching part 26 controls the hand-side mode switch 24 and the foot-side mode switch 25 such that the measurement mode of the body composition analyzer 10 is switched to "the sebum caliper mode".
  • the mode switching part 26 controls the hand-side mode switch 24 and the foot-side mode switch 25 such that the measurement mode of the body composition analyzer 10 is switched to "the sebum caliper mode".
  • the hand-side mode switch 24 switches the connections between the input/output lines of the hand-side bioelectrical impedance measurement part 9 and the respective electrodes provided in the hand grip 2 and 22 in accordance with a control signal (a mode switching signal) from the mode switching part 26.
  • the hand-side mode switch 24 when the measurement mode is "the sebum caliper mode", connects the output line I+ and the output line I- of the electrical-current application part 9a to the electrical-current electrode 21a+ and the electrical-current electrode 21a-, respectively, and the hand-side mode switch 24 connects the input line V+ and the input line V- of the voltage measurement part 9b to the voltage electrode 21b+ and the voltage electrode 21b-, respectively.
  • the connections by the hand-side mode switch 24 shown in FIG. 12 are the connections at the time of "the sebum caliper mode".
  • the hand-side mode switch 24 connects the output line I+ and the output line I- of the electrical-current application part 9a to the electrical-current electrode 1a and the electrical-current electrode 2a, respectively, and the hand-side mode switch 24 connects the input line V+ and the input line V- of the voltage measurement part 9b to the voltage electrode 1b and the voltage electrode 2b, respectively.
  • the foot-side mode switch 25 switches the connections between the input/output lines of the foot-side bioelectrical impedance measurement part 23 and the respective electrodes of the foot-side measurement portion 3 and 4 in accordance with the control signal (the mode switching signal) from the mode switching part 26.
  • the foot-side mode switch 25 disconnects the input/output lines of the foot-side bioelectrical impedance measurement part 23 from the respective electrodes provided in the foot-side measurement portion 3 and 4. With such a configuration, it is possible to set the measurement mode of the body composition analyzer 10 to the sebum caliper mode.
  • the connections by the foot-side mode switch 25 shown in FIG. 12 are the connections at the time of "the sebum caliper mode”.
  • the foot-side mode switch 25 connects the output line I+ and the output line I- of the electrical-current application part 23a to the electrical-current electrode 3a and the electrical-current electrode 4a, respectively, and the foot-side mode switch 25 connects the input line V+ and the input line V- of the voltage measurement part 23b to the voltage electrode 3b and the voltage electrode 4b, respectively.
  • the control part 20 is caused to lose the function of the foot-side measurement portions 3, 4 by disconnecting the input/output lines of the foot-side bioelectrical impedance measurement part 23 from the respective electrodes provided in the foot-side measurement portion 3 and 4.
  • the foot-side bioelectrical impedance measurement part 23, the foot-side mode switch 25, and the foot-side measurement portions 3, 4 may be deleted from the configuration of the body composition analyzer 10.
  • a processing for switching the measurement mode of the body composition analyzer 10 executed by the body composition analyzer 10 in this embodiment will be described.
  • a mode switching processing for switching the measurement mode of the body composition analyzer 10 executed by the body composition analyzer 10 in this embodiment.
  • the mode switching processing which will be described below, is realized on the basis of the control program stored in the storage part 8.
  • the mode switching processing which will be described below, is started by assuming that the user is at least holding the hand grip 21.
  • step S20 the mode switching part 26 acquires the angles of the hand grip 21 (at least one of the X-axis angle, the Y-axis angle, and the Z-axis angle) detected by the acceleration sensor 7 provided in the hand grip 21.
  • the user inclines the hand grip 21 to the angles corresponding to the respective modes. For example, in a case in which the angle corresponding to "the normal mode" is set as an angle condition ⁇ and the angle corresponding to "the sebum caliper mode" is set as an angle condition ⁇ , when the user is to select the normal mode, the user inclines the hand grip 21 for the certain period of time so as to satisfy the angle condition ⁇ .
  • the angle conditions ⁇ , ⁇ may be set appropriately.
  • the angle condition ⁇ the angle that is achieved when the longitudinal direction of the hand grip 21 is inclined horizontally with respect to the ground surface
  • a certain angle may be set as one of the angle conditions (for example, the angle condition ⁇ ), and angles other than the angle condition ⁇ may be set as the angle condition ⁇ .
  • step S21 the mode switching part 26 determines whether or not the angle condition ⁇ is maintained for the certain period of time.
  • the certain period of time in this description may be set appropriately from the viewpoint of suitably reading the angle of the hand grip 21 intended by the user, and it may be three seconds for example.
  • the processing in step S22 is executed.
  • the processing in step S24 is executed.
  • step S22 the mode switching part 26 controls the hand-side mode switch 24 and the foot-side mode switch 25 to set the arrangements (the connections) of the electrodes of the hand grips 2 and 21 and the foot-side measurement portions 3 and 4 to the normal mode (see FIGs. 11A, 11B , and 12 ).
  • the control part 20 may inform of the user that the measurement mode of the body composition analyzer 10 has been set to "the normal mode" via the display portion 5.
  • step S23 the control part 20 starts the measurement of the bioelectrical impedance of the user as the eight-electrode or four-electrode type body fat analyzer and terminates the mode switching processing.
  • the above-described body composition measurement processing in the first embodiment is performed, or alternatively, the conventionally known body composition measurement processing is performed without performing the correction according to the detected value by the acceleration sensor 7 (the inclination angle) as described in the first embodiment.
  • step S24 the mode switching part 26 determines whether or not the angle condition ⁇ is maintained for the certain period of time.
  • the processing in step S25 is executed.
  • the processing in step S20 is executed.
  • step S24 may be omitted. In this case, when a negative determination (NO determination) is made in step S21, step S25 is executed subsequently.
  • step S25 the mode switching part 26 controls the hand-side mode switch 24 and the foot-side mode switch 25 to set the arrangements (the connections) of the electrodes of the hand grips 2 and 21 and the foot-side measurement portions 3 and 4 to the sebum caliper mode (see FIGs. 11C, 11D , and FIG. 12 ).
  • the control part 20 may inform of the user that the measurement mode of the body composition analyzer 10 has been set to "the sebum caliper mode" via the display portion 5.
  • step S26 the control part 20 starts the measurement of the bioelectrical impedance as the sebum caliper using the hand grip 21 provided with the four electrodes and terminates the mode switching processing.
  • the control part 20 measures the local sebum thickness of the user by known methods. With the flow described above, the user can easily switch the two functions of the body composition analyzer 10 by a simple operation of changing the inclination of the hand grip 21.
  • the hand grip 21 is configured so as to be capable of switching a first measurement mode (the normal mode) in which the pair of energization electrode (the electrical-current electrode 1a) and the measurement electrode (the voltage electrode 1b) are functioned and a second measurement mode (the sebum caliper mode) in which the two pairs of local energization electrode (the electrical-current electrode 21a+, 21a-) and the local measurement electrode (the voltage electrode 21b+, 21b-) are functioned, and the body composition analyzer 10 is further provided with the mode switching means (the mode switching part 26) that switches between the first measurement mode and the second measurement mode in accordance with the inclination of the hand grip 21 detected by the inclination detection means (the acceleration sensor 7).
  • the mode switching means the mode switching part 26
  • the body composition analyzer 10 that has both of the function of the four-electrode type or eight-electrode type conventional body composition analyzer compatible with the first measurement mode and the function (the second measurement mode) of the four-electrode type sebum caliper (an abdominal fat meter) compatible with the second measurement mode, and further, that is capable of switching these two functions.
  • the body composition analyzer 10 in this embodiment can improve a motivation of the user to measure the body composition of himself/herself in more detail.
  • one of the electrical-current electrode 1a and the voltage electrode 1b is configured of the at least four adjacent the electrodes A to D
  • the mode switching means configures, when the hand grip 21 is set to the first measurement mode, a pair of the energization electrode (the electrical-current electrode 1a) and the measurement electrode (the voltage electrode 1b) in the hand grip 21 by bringing the at least four electrodes A to D into mutual continuity, and configures, when the hand grip 21 is set to the second measurement mode, two pairs of the local energization electrodes (the electrical-current electrode 21a+, 21a-) and the local measurement electrodes (the voltage electrode 21b+, 21b-) in the hand grip 21 by bringing the at least four electrodes A to D into mutual non-continuity so as to be electrically divided into four parts and by bringing the other of the energization electrode (the electrical-current electrode 1a) and the measurement electrode (the voltage electrode 1b) into non
  • the electrode that is used for the function corresponding to the first measurement mode and the electrode that is used for the function corresponding to the second measurement mode can be at least partially shared, and therefore, it is possible to suppress a total number and the installation space of the electrodes required to realize the body composition analyzer 10 having the two functions described above.
  • the electrode part may not necessarily be the hand grip as described above by referring to FIG. 2 , etc. It suffices that the electrode part has, upon the measurement of the bioelectrical impedance of the user, functions similar to those of the above-described hand grip 1, 2, and at the same time, has a shape that enable it to be fixed to the upper limb of the user.
  • the electrode part may be configured to have, for example, a clamping part having a clip-like shape so as to be fixable to the user by clamping the upper limb of the user (for example, the forearm part) by the clamping part.
  • the inclination detection means is not limited to the acceleration sensor 7.
  • Other sensors such as the gyro sensor, etc. may be used as the inclination detection means as long as the inclination of the hand grip 1 can be detected as the parameter indicative of the posture of the user during the measurement of the bioelectrical impedance.
  • the inclination detection means is not limited to sensors, and the inclination of the hand grip may be detected by using a known mechanism, an image recognition, or the like.
  • the shape of the body composition analyzer 10 is not limited to those described by using the drawings, etc., and as long as the above-described functions are attained, it may be changed appropriately.
  • the shape of the hand grip 1, 2, 21 is not limited to those illustrated, and it may be changed appropriately by considering the ease of grasp, the stability of the posture of the user at the time of the measurement, and so forth.
  • the configuration of the body composition analyzer 10 is also not limited to those described by using the drawings, etc., and as long as the above-described functions are attained, it may be changed appropriately.
  • the arrangement of the respective electrodes provided in the hand grip 1, 2, 21 can be exchanged appropriately as long as the above-described respective functions operate suitably in accordance with the measurement mode.
  • the electrodes A to D may not necessarily be the four electrodes that are adjacent with each other in a line, as described by using FIGs. 11A to 11D .
  • the electrical-current electrode 1a or the voltage electrode 1b of the hand grip 21 may be configured of five or more electrodes as long as they can be divided into adjacent four electrodes.
  • the electrical-current electrode 1a or the voltage electrode 1b when configured of five electrodes, the electrical-current electrode 1a or the voltage electrode 1b may be configured so as to be capable of being divided into the four electrodes in mutual non-continuity by bringing two adjacent electrodes into continuity and by bringing these two electrode and the other three electrodes into mutual non-continuity.
  • the directions (the X axis direction, the Y axis direction, and the Z axis direction) detected by the acceleration sensor 7 provided in the above-described hand grips 1, 2, 21 are examples, and they can be changed appropriately.
  • the abnormal posture of the user detected in accordance with the respective axial directions described with reference to FIGs. 8 to 10 are examples, and they are not limited to those illustrated.
  • the axial directions detected by the acceleration sensor 7 in accordance with the inclinations of the hand grips 1, 2, 21 and the abnormal posture detected by the change in the axial directions may be adjusted or changed appropriately.
  • the flowcharts shown in FIGs. 6 and 13 may not necessarily include all of the illustrated steps, and may not be executed in the order illustrated. In addition, as long as the above-described functions are not lost, the flowcharts may include other steps that are not illustrated.
  • a step of determining whether or not the normal posture (the reference value) is detected may be added as a measurement start condition for the body composition measurement processing shown in FIG. 6 .
  • an action of taking the normal posture at least once by the user grasping the hand grips 1 and 2 can be set as the measurement start condition.
  • the mode switching processing described above in the second embodiment is not limited to the mode described in FIG. 13 .
  • the mode switching processing may be configured such that, when the inclination angle falling outside the predetermined range is detected (for example, see the NO determination in steps S12, S14, and S16) during the measurement in the normal mode as shown in FIG. 6 , the mode is switched to the sebum caliper mode, and as the measurement in the sebum caliper mode is finished, the mode is switched back to the normal mode again to start the measurement of the body fat percentage again.
  • the mode is switched to the sebum caliper mode and when the mode is switched back to the normal mode again, it is preferable to inform the user of the switching of the operating mode.
  • the above-described mode switching processing may not necessarily be triggered by the inclination angle detected by the acceleration sensor 7 for the switching of the mode.
  • the mode switching processing may be configured so as to be switched in accordance with the operation of the user acquired via the operation portion 6.
  • the mode switching processing may be configured such that the operation modes are switched as a series of measurement processing executed in the respective operation modes without requiring a predetermined switching operation by the user, by for example, automatically switching the mode to the sebum caliper mode after the measurement in the normal mode is finished, or by automatically switching the mode to the normal mode after the measurement in the sebum caliper mode is finished.
  • the terms indicating the directions such as the horizontal (the parallel) direction, the vertical direction, and so forth, which are used especially for the description of the hand grip 1, 2, 21 or the description of the axial direction to be detected by the acceleration sensor 7, are not necessarily intended to indicate the accurate directions in the strict sense.
  • the directions stated in this description may include some deviations within the allowable range from the viewpoint of the measurement accuracy of the body composition measured by the body composition analyzer 10.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physiology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
EP20783519.0A 2019-03-29 2020-03-27 Vorrichtung zur messung biologischer daten, verfahren zur messung biologischer daten und programm Pending EP3949852A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019068650A JP7233692B2 (ja) 2019-03-29 2019-03-29 生体データ測定装置、生体データ測定方法及びプログラム
PCT/JP2020/014328 WO2020203893A1 (ja) 2019-03-29 2020-03-27 生体データ測定装置、生体データ測定方法及びプログラム

Publications (2)

Publication Number Publication Date
EP3949852A1 true EP3949852A1 (de) 2022-02-09
EP3949852A4 EP3949852A4 (de) 2022-11-23

Family

ID=72668191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20783519.0A Pending EP3949852A4 (de) 2019-03-29 2020-03-27 Vorrichtung zur messung biologischer daten, verfahren zur messung biologischer daten und programm

Country Status (5)

Country Link
US (1) US20220211290A1 (de)
EP (1) EP3949852A4 (de)
JP (2) JP7233692B2 (de)
CN (1) CN113631091A (de)
WO (1) WO2020203893A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220354387A1 (en) * 2019-11-28 2022-11-10 Nippon Telegraph And Telephone Corporation Monitoring System, Monitoring Method, and Monitoring Program
JP2022168714A (ja) * 2021-04-26 2022-11-08 株式会社タニタ 体組成計、体組成測定方法、及び体組成測定プログラム
CN113456050B (zh) * 2021-07-23 2023-12-19 芯海科技（深圳）股份有限公司 人体阻抗测量装置及人体阻抗测量方法
CN114631687B (zh) * 2022-03-07 2023-05-12 深圳市瑞必达科技有限公司 升降桌不计算欧拉角做敲击保护和倾斜保护的控制方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09285455A (ja) * 1996-02-23 1997-11-04 Omron Corp 健康管理指針アドバイス装置
JP3240407B2 (ja) * 1997-10-20 2001-12-17 オムロン株式会社 健康管理指針アドバイス装置
JP3772617B2 (ja) 1999-11-30 2006-05-10 オムロンヘルスケア株式会社 健康管理指針アドバイス装置
JP3931641B2 (ja) 2001-11-27 2007-06-20 オムロンヘルスケア株式会社 健康管理指針アドバイス装置
JP2005230120A (ja) 2004-02-17 2005-09-02 Tanita Corp インピーダンス測定装置及び体組成測定装置
JP2007296266A (ja) 2006-05-08 2007-11-15 Physio Trace Kk 生体センサ装置
JP5493198B2 (ja) 2007-08-25 2014-05-14 株式会社タニタ 生体データ測定器
JP5163197B2 (ja) 2008-03-14 2013-03-13 オムロンヘルスケア株式会社 姿勢評価装置
US20130023740A1 (en) 2011-07-21 2013-01-24 Jens Kirchner Device and method for monitoring physiological signals
DE102014205838A1 (de) 2013-08-07 2015-02-12 Robert Bosch Gmbh Verfahren und Vorrichtung zur Personenidentifikation
KR20150081735A (ko) * 2014-01-06 2015-07-15 삼성전자주식회사 모바일 디바이스의 체지방 측정 방법 및 장치
KR102556007B1 (ko) 2015-10-07 2023-07-17 삼성전자주식회사 생체신호 측정장치 및 방법
CN205964016U (zh) 2016-04-13 2017-02-22 欧姆龙健康医疗事业株式会社 人体成分测量装置
KR101980379B1 (ko) * 2017-06-15 2019-05-20 (주)대우루컴즈 휴대용 체성분 분석장치 및 그 방법
JP6874627B2 (ja) 2017-10-02 2021-05-19 株式会社豊田自動織機 電動圧縮機用インバータモジュール

Also Published As

Publication number Publication date
JP2023056003A (ja) 2023-04-18
JP7233692B2 (ja) 2023-03-07
WO2020203893A1 (ja) 2020-10-08
EP3949852A4 (de) 2022-11-23
JP7540774B2 (ja) 2024-08-27
CN113631091A (zh) 2021-11-09
US20220211290A1 (en) 2022-07-07
JP2020163015A (ja) 2020-10-08

Similar Documents

Publication Publication Date Title
EP3949852A1 (de) Vorrichtung zur messung biologischer daten, verfahren zur messung biologischer daten und programm
EP0998875B1 (de) Körperfettmessgerät mit körpergrössenanzeige
US20240032814A1 (en) Impedance measurement system
EP1700565B1 (de) Vorrichtung zur Messung der Körperzusammensetzung
JP4586727B2 (ja) 体組成計
JP2022027133A (ja) 健康度判定システム、健康度判定プログラム、及び健康度判定サーバ
EP1092388B1 (de) Körperkompositionsmessgerät mit eingebauter Waage
KR100423678B1 (ko) 핸드그립을 갖춘 생체전기 임피던스 측정장치
JP2001149328A (ja) 健康管理指針アドバイス装置
CN111918607B (zh) 人体水分含量的测定装置
JP4423768B2 (ja) 体脂肪測定装置
JP4055466B2 (ja) 身体組成検出装置
JP4069500B2 (ja) 体脂肪測定装置
JP4396290B2 (ja) 生体情報測定装置
WO2024075751A1 (ja) 人体測定装置及び測定方法
JP4196035B2 (ja) 体脂肪測定装置
JP2004255015A (ja) 生体情報測定装置
JP2004129779A (ja) 生体情報測定装置
KR20030025749A (ko) 체지방계 측정 장치 및 측정 방법
KR20180053824A (ko) 측정값 보정기능을 가진 체성분분석기

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210929

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20221021

RIC1 Information provided on ipc code assigned before grant

Ipc: A61B 5/0537 20210101ALI20221017BHEP

Ipc: A61B 5/11 20060101ALI20221017BHEP

Ipc: A61B 5/00 20060101ALI20221017BHEP

Ipc: A61B 5/107 20060101ALI20221017BHEP

Ipc: A61B 5/05 20210101AFI20221017BHEP